[issue31701] faulthandler dumps 'Windows fatal exception: code 0xe06d7363'

[STINNER Victor]

STINNER Victor <victor.stinner at gmail.com> added the comment:

I failed to build https://github.com/FynnBe/faulthandler-spam with a Python built myself. But I succeeded to recompile a Python extension (_overlapped) in C++ (I removed two functions which caused compilation error) and then added faulthandler-spam/test_module/module.cpp code into _overlapped. So I was able to test C++ code raising a regular extension called by Python.

Sadly, using "AddVectoredExceptionHandler(0, faulthandler_exc_handler);" (instead of "AddVectoredExceptionHandler(1, ...") doesn't solve the issue: the exception is still logged. It seems like the faulthandler exception handler is called before C++ has the opportunity to handle the exception.

So it doesn't seem possible to log *unhandled* C++ exceptions using AddVectoredExceptionHandler() without flooding logs with *handled* C++ extensions.

I now agree with Steve Dower to ignore *all* C++ exceptions in faulthandler.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31701>
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